rust/src/libstd/sys/common/thread.rs
Niko Matsakis cade32acf6 Remove Thunk struct and Invoke trait; change Thunk to be an alias
for `Box<FnBox()>`. I found the alias was still handy because it is
shorter than the fully written type.

This is a [breaking-change]: convert code using `Invoke` to use `FnBox`,
which is usually pretty straight-forward. Code using thunk mostly works
if you change `Thunk::new => Box::new` and `foo.invoke(arg)` to
`foo(arg)`.
2015-04-01 14:41:21 -04:00

31 lines
1.1 KiB
Rust

// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use prelude::v1::*;
use usize;
use libc;
use thunk::Thunk;
use sys_common::stack;
use sys::stack_overflow;
// This is the starting point of rust os threads. The first thing we do
// is make sure that we don't trigger __morestack (also why this has a
// no_stack_check annotation), and then we extract the main function
// and invoke it.
#[no_stack_check]
pub fn start_thread(main: *mut libc::c_void) {
unsafe {
stack::record_os_managed_stack_bounds(0, usize::MAX);
let _handler = stack_overflow::Handler::new();
let main: Box<Thunk> = Box::from_raw(main as *mut Thunk);
main();
}
}